This is a simple idea in a sense.
We need to reduce the risk of infection, and physical distancing (2m separation) does that.
It is a respiratory virus – it comes out in our breath.
So what we really need to do is to have our air supplies 2m apart.
Think in 3D.
If we take in air at 2m above ground, and discharge it at ground level, we can have respiratory isolation and physical proximity.
A simple fan (like a quiet computer power supply fan – under 20db – cost about $7) with a lightweight snorkel – shoulder mounted; feeding air into a simple duckbill type mask from both sides, and an exit tube that could be velcro attached to belt and ankle – and we have separation.
Put a stocking in both inlet and outlet tubes and we have basic filtration.
Add a simple cover on top and we prevent rainwater and gravel entry.
A simple recharable 12v power supply (either gel-cell or 10x AA lithium cells) and it is entirely portable.
A shoulder mount that is stepped to allow an ordinary backpack to be taken on and off while wearing it, and we can be back to somewhere near normal while also being respiratorally isolated.
Copyright 2020 Solution-Multipliers NZ Ltd – Anyone is free to use this idea to make their own, for themselves or for friends, but anyone who sells them I want 10c for each one sold.